Question: Remember our sample of pages in this book from the earlier Just Checking? 48% of pages had a data display. 27% of pages had an equation, and 7% of pages had both a data display and an equation.
a) Make a contingency table for the variables display and equation.
b) What is the probability that a randomly selected sample page with an equation also had a data display?
c) Are having an equation and having a data display disjoint events?
d) Are having an equation and having a data display independent events?